Mathematics
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OpenStudy (anonymous):
Can someone tell me if this is right??
finding the slant height..
i got 473.96
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OpenStudy (anonymous):
OpenStudy (amistre64):
what does it mean by slant height? the edge or the face?
OpenStudy (anonymous):
idk.. it just says find the slant height of the regular pyramid
OpenStudy (amistre64):
i googled it and it says slant height is the distance up the face.
that distance is equal to sqrt(15^2 + 6^2)
sqrt(225 + 36) = sqrt(261) right?
OpenStudy (amistre64):
16.155 is what I get.....
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OpenStudy (anonymous):
okay.. i got 17.2
OpenStudy (amistre64):
the slant height is just the hypotenuse of he right triangle that is formed by 15 and 12/2
OpenStudy (anonymous):
I agree with Amiestre64
OpenStudy (amistre64):
dont let the hero title fool ya..... im just an idiot in disguise :)
OpenStudy (amistre64):
i got 2 hours to write up a paragraph on how well Johnson and Johnson company would be as a stock purchase...... procrastinating :)
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OpenStudy (anonymous):
Indeed.
\[15^2 + 6^2 = \text{Slant height}^2\]
\[ \rightarrow \text{Slant height} = \sqrt{15^2 + 6^2} = \sqrt{225+36} = \sqrt{261} \approx 16.1555\]
OpenStudy (anonymous):
slant height for this one
OpenStudy (anonymous):
Employ the same technique.
OpenStudy (amistre64):
is that a 13 or an 18?
OpenStudy (anonymous):
18
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OpenStudy (anonymous):
The 'legs' of the hypotenuse are 5 an 18
OpenStudy (amistre64):
sqrt(5^2 + 13^2) then
sqrt(25 + 196)
OpenStudy (amistre64):
er.... 169 :)
OpenStudy (anonymous):
OpenStudy (amistre64):
........ugh, maybe I do need to write that paragraph lol
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OpenStudy (amistre64):
18^2 not 13^2
OpenStudy (amistre64):
8 and 1 are your legs there
OpenStudy (anonymous):
where did the one come from
OpenStudy (amistre64):
since the height of thing comes down to the middle of a side, the length you use for the bottom leg is just half of a side....2/2 = 1
OpenStudy (anonymous):
oh
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OpenStudy (anonymous):
so for this one slant height is 18.68
OpenStudy (anonymous):
this one slant height = 8.06
OpenStudy (anonymous):
I get 8.246 for that last one.
OpenStudy (anonymous):
Oh wait no. You're right.
OpenStudy (anonymous):
8.06
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OpenStudy (anonymous):
it would be ft ^2 right
OpenStudy (anonymous):
No. You have
\[\sqrt{ft^2 + ft^2} \]
So it will be in ft.
OpenStudy (anonymous):
ok